Sculpted with an oversized design, the Proof Eyewear Federal Wood Sunglasses masterfully merge sustainably harvested wood with stunning aesthetics. Part of Proof's Wood Collection, the Federals use premium cuts of wood for the utmost in durability and refined quality. The waterproof treatment resists warping when you're walking along coastal environments and kicking back by the pool. CR-39 lenses block harmful UV rays for protection on the sunniest days of the year, while polarization prevents blinding glare from distracting your vision when you're driving down coastal highways or riding your bike along exposed landscapes. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.